The full answer
Oats themselves don't contain gluten — but cross-contact is common
Pure oats are naturally gluten-free, but oats are very frequently grown, transported, or processed alongside wheat, barley, or rye, which means regular oats often carry meaningful gluten cross-contact even without any wheat listed as an ingredient.
What to look for
For this reason, people with celiac disease are generally advised to choose oats specifically labeled “gluten-free” rather than regular oats — see can people with celiac disease eat gluten-free oats for more on how that certification works and why a small number of people still react to them.
Important context
Individual symptoms, reactions, medical histories, food products, and local labeling rules can vary. Community experiences are not medical evidence.
For personal medical decisions, diagnosis, testing, or treatment, consult a qualified healthcare professional.